Dragonspire by Talya Andor at Less Than Three Press

Book Blurb

In the wake of his grandfather's death and the unexpected contents of his will, Gideon abandons his career, cuts ties with his family, and heads overseas to figure out a life that has never made him happy. He settles for a time in Myanmar, content to roam the country taking pictures, carefully avoiding the dangerous local politics.

When he ventures into the jungle, he expects wildlife and possibly men with guns if he's unlucky. Instead, he meets a princess who sweeps him off to another world, claiming that Gideon is the only one who can help her slay the terrible black dragon threatening her people—and if he ever wants to see home again, he has no choice.